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Information processing apparatus and information processing method

a technology of information processing and information processing apparatus, which is applied in the field of information processing apparatus and information processing method, can solve the problems of difficulty in quickly detecting the presence of disease or lesion with human vision in a cas

Inactive Publication Date: 2019-04-04
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent is about a technique that helps doctors quickly identify potential breast cancer or other lesions using X-ray mammography images. The technique involves acquiring image data of the breast, setting a region of interest, and comparing index values to determine if there is a possibility of a lesion. This information processing apparatus can help doctors make earlier diagnostic decisions and improve patient outcomes.

Problems solved by technology

However, a problem here is that it is extremely difficult to quickly discriminate the presence of a disease or lesion with human vision in a case where the blood vessels present in the breast are imaged, such as by photoacoustic imaging apparatus.

Method used

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  • Information processing apparatus and information processing method
  • Information processing apparatus and information processing method
  • Information processing apparatus and information processing method

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Experimental program
Comparison scheme
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first embodiment

[0037]The photoacoustic apparatus according to this first embodiment is an apparatus that irradiates the object with light pulses and produces a blood vessel image (structural image) of the interior of the object upon receiving the photoacoustic waves generated within the object.

[0038]In addition, the photoacoustic apparatus according to the first embodiment has a diagnostic support function of performing the photoacoustic measurement on a body portion (breast, hands, feet, fingers, and so forth) that forms a left-and-right pair in the same individual and estimating the presence / absence of a disease (tumor) based on the acquired photoacoustic images.

[0039]

[0040]The structure of the photoacoustic apparatus according to the first embodiment is described in the following with reference to FIG. 3. The photoacoustic apparatus according to the first embodiment has the function of performing diagnostic support with respect to the breast.

[0041]The photoacoustic apparatus according to the fi...

second embodiment

[0114]The second embodiment is an embodiment in which diagnostic support is performed with regard to the presence / absence of lymph node involvement in breast cancer. The apparatus structure and so forth of the photoacoustic apparatus according to this second embodiment conforms to the first embodiment.

[0115]In this second embodiment, photoacoustic data is acquired using left and right sentinel lymph nodes as the target. In the first embodiment, the region of interest is set in the step S605 using the nipple as the reference (characteristic point); however, in the present embodiment the region of interest is set using a sentinel lymph node as the reference. In addition, the index values shown in FIG. 5 are acquired and a comparison is performed between regions of interest for which the references (characteristic points) are the left and right sentinel lymph nodes. When, as a result, a significant difference is observed between the left and right index values, a finding of suspicion o...

third embodiment

[0116]The third embodiment is an embodiment in which the results determined by the apparatus in the first and second embodiments are externally output.

[0117]In this third embodiment, the performance of the step S605 is followed by the performance by the data processing section 306 of a step of producing the evaluation results and externally outputting same.

[0118]Specifically, for example, data containing the information as indicated below is produced and is written to the data storage section 308 associated with the apparatus or is transmitted to an external management unit (not shown).[0119]object ID[0120]portion identifier (hand, foot, breast, and so forth)[0121]left / right identifier[0122]right index value / left index value (absolute values)[0123]value expressing difference between left and right (relative value)[0124]evaluation results (presence / absence of tumor, possible presence of tumor, and so forth)

[0125]The output data may be produced, for example, by a controllable format b...

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Abstract

An information processing apparatus includes: an image acquisition unit that acquires first image data for a first object and second image data for a second object that corresponds to a portion that forms a pair with the first object; a setting unit that sets a region of interest for the first image data and a region of interest for the second image data; an index value acquisition unit that acquires an index value that represents a characteristic feature within the region of interest set for the first image data and an index value that represents a characteristic feature within the region of interest set for the second image data; and an acquisition unit that, based on the results of a comparison of the index values, acquires information indicating the possible presence of a lesion in at least one of the first object and the second object.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention relates to an apparatus that processes an image that reflects information on the interior of an object.Description of the Related Art[0002]Photoacoustic imaging is known as a technique for imaging structural information and physiological information, i.e., functional information, on the interior of an object.[0003]When an organism, i.e., an object, is irradiated with light, e.g., laser light, acoustic waves (typically ultrasound waves) are produced when the light is absorbed by biological tissue in the interior of the object. This phenomenon is referred to as a photoacoustic effect, and the acoustic waves produced by the photoacoustic effect are referred to as photoacoustic waves. Since the absorptivity for the light energy varies with each tissue constituting the object, the acoustic pressure of the generated photoacoustic waves also varies. In photoacoustic imaging, the generated photoacoustic waves are r...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B5/00G06T7/11G06T7/00
CPCA61B5/0095G06T7/11G06T7/0012A61B5/7485A61B5/7282A61B5/489A61B5/4312A61B5/004G06T2207/30096G06T2207/30101G06T2207/30068A61B2576/02G06T7/0014G06T2207/30076A61B5/418A61B5/0091
Inventor FUKUI, TOSHIFUMI
Owner CANON KK
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